So the
Mickey Thompson Sportsman S/T tires arrived:
235/60R15 fronts and 295/50R15 rears.
They come boxed:
The rears are 10" tread width, same as Goodyear "Billboards" ("GY BB"):
The buldge is the same as GY BB, but rears not quite as tall:
Fronts about same height:
Making for a prefect fit on a 65 roadster!